CPT® Code 80428

Growth hormone stimulation panel (eg, arginine infusion, l-dopa administration) This panel must include the following: Human growth hormone (HGH) (83003 x 4)

The CPT® Code 80428 refers to a growth hormone stimulation panel, which is a laboratory test designed to assess the functionality of the pituitary gland in producing human growth hormone (HGH). HGH is a critical hormone secreted by the pituitary gland, a small endocrine gland located at the base of the brain, responsible for various growth and metabolic functions. This test is particularly relevant for individuals exhibiting symptoms indicative of low HGH levels, which can manifest as stunted growth in children or decreased bone density and muscle mass in adults. The growth hormone stimulation test evaluates the pituitary gland's response to specific stimuli, such as arginine infusion or L-dopa administration, to determine its ability to release HGH. The test is typically indicated for children who are significantly smaller than their peers or for adults presenting with symptoms like fatigue, poor exercise tolerance, and unfavorable lipid profiles. Prior to the test, patients are required to fast for at least 10 hours and avoid any physical activity to ensure accurate results. The procedure involves the insertion of an intravenous line, followed by the collection of baseline and subsequent blood samples to monitor HGH levels over a specified period, utilizing advanced testing methods such as quantitative chemiluminescent immunoassay.